Title :
Investigation to simulation of control strategy of parallel hydraulic hybrid vehicles based on backward modeling
Author :
Tao, Liu ; Hui, Sun ; Jihai, Jiang
Author_Institution :
Sch. of Automobile Eng., Harbin Inst. of Technol., Weihai, China
Abstract :
Based upon the engine efficiency map and hydraulic pump/motor efficiency curve, a real-time control strategy is proposed for parallel hydraulic hybrid vehicles (PHHV) using the load leveling concept and logic threshold approach to control the torque distribution, various operation modes and the dynamical transitions between the modes for the hybrid power train. In the environment of the backward simulation system model of PHHV developed using MATLAB/Simulink, the control algorithm is designed and tested with the aid of computer simulation. The simulation results demonstrate that the energy control strategy can reasonably switch among various operation modes, optimize the engine operating point and hydraulic pump/motor efficiency, satisfy vehicle dynamic performance and reduce fuel consumption effectively.
Keywords :
hydraulic systems; power control; torque control; vehicles; MATLAB; Simulink; backward modeling; backward simulation system model; control algorithm designing; engine efficiency map; engine operating point optimization; hybrid power train; hydraulic motor efficiency curve; hydraulic pump efficiency curve; load leveling concept; logic threshold approach; parallel hydraulic hybrid vehicles control strategy; simulation investigation; torque distribution control; Computational modeling; Computer simulation; Engines; Logic; MATLAB; Mathematical model; Power system modeling; Switches; Torque control; Vehicles; Backward modeling; Control strategy; Logic threshold method; Parallel hydraulic hybrid vehicle; simulation;
Conference_Titel :
Mechatronics and Automation, 2009. ICMA 2009. International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4244-2692-8
Electronic_ISBN :
978-1-4244-2693-5
DOI :
10.1109/ICMA.2009.5246640
